I guess I'll start us off! I've written a couple stories for this pairing.
Title:
Moths & CandlesRating: R for sex.
Warnings: Like I said, there's sex.
Summary: 1920s - After the Great War, many Americans stayed in or traveled to France, searching for meaning, as part of what in America came to be called the Lost Generation, and in France was called the Generation of Fire. Sex, jazz, spilled wine, and existentialism ensues.
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Title:
It's Really A ThreesomeRating: R for sex.
Warnings: Still sex. Also, England cockblocks France and America without ever appearing in the story.
Summary: 1803 - The Louisiana Purchase, and France is a catty bitch. Still, they manage to "arrange" for "payment" for the "transfer of territory." If you know what I mean.